GSTDTAP  > 气候变化
DOI10.1029/2019GL083601
Present-Day Subsidence in the Ganges-Brahmaputra-Meghna Delta: Eastern Amplification of the Holocene Sediment Loading Contribution
Krien, Y.1,2; Karpytchev, M.2; Ballu, V2; Becker, M.2; Grall, C.3; Goodbred, S.4; Calmant, S.5; Shum, C. K.6,7; Khan, Z.8
2019-10-10
发表期刊GEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
EISSN1944-8007
出版年2019
文章类型Article;Early Access
语种英语
国家France; USA; Peoples R China; Bangladesh
英文摘要

The subsidence of the Ganges-Brahmaputra-Meghna Delta (GBMD) drastically increases the adverse impacts of coastal flooding and exacerbates the vulnerability of populations from ongoing rapid sea level rise. We focus here on estimating the present-day subsidence rates induced by the loading of sediments continuously deposited within the GBMD over the past 11,000 years. By constructing a realistic GBMD 3-D numerical model with laterally variable mantle and lithospheric structure, we demonstrate for the first time that the presence of the strong Indian Craton and the weakened Indo-Burma margin results in significant amplification of subsidence driven by sediment loading in the eastern part of the delta, where the population density is the highest (>1,000 habitants per km(2)). Although uncertainties remain regarding the amplitude of subsidence, the rate estimates (2-3 mm/year) are found to be comparable to the present-day global mean sea level rise.


英文关键词land subsidence sediment loading relative sea level rise Ganges-Brahmaputra-Meghna Delta
领域气候变化
收录类别SCI-E
WOS记录号WOS:000489485000001
WOS关键词SEA-LEVEL CHANGES ; SUBDUCTION ; BENEATH ; ICE
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/187614
专题气候变化
作者单位1.Univ French West Indies, LARGE, Pointe A Pitre, Guadeloupe, France;
2.Univ La Rochelle, UMR 7266, LIENSs, CNRS, La Rochelle, France;
3.Columbia Univ, Lamont Doherty Earth Observ, New York, NY USA;
4.Vanderbilt Univ, Dept Earth & Environm Sci, 221 Kirkland Hall, Nashville, TN 37235 USA;
5.Univ Toulouse III, LEGOS, UMR5566, CNRS,CNES,IRD,UPS, Toulouse, France;
6.Ohio State Univ, Sch Earth Sci, Div Geodet Sci, Columbus, OH 43210 USA;
7.Chinese Acad Sci, Inst Geodesy & Geophys, Wuhan, Hubei, Peoples R China;
8.Inst Water Modelling, Dhaka, Bangladesh
推荐引用方式
GB/T 7714
Krien, Y.,Karpytchev, M.,Ballu, V,et al. Present-Day Subsidence in the Ganges-Brahmaputra-Meghna Delta: Eastern Amplification of the Holocene Sediment Loading Contribution[J]. GEOPHYSICAL RESEARCH LETTERS,2019.
APA Krien, Y..,Karpytchev, M..,Ballu, V.,Becker, M..,Grall, C..,...&Khan, Z..(2019).Present-Day Subsidence in the Ganges-Brahmaputra-Meghna Delta: Eastern Amplification of the Holocene Sediment Loading Contribution.GEOPHYSICAL RESEARCH LETTERS.
MLA Krien, Y.,et al."Present-Day Subsidence in the Ganges-Brahmaputra-Meghna Delta: Eastern Amplification of the Holocene Sediment Loading Contribution".GEOPHYSICAL RESEARCH LETTERS (2019).
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